I was solving an equation and got the singularity error; however, the error message said ERR:SINGULARTY (a misspelling). I'm wondering if this is common to all calculators? Testing on a TI-84+/SE with a new OS would resolve the question.

The error can be gotten with the code:

:AsmPrgm3E17EFD744C9

Another thing — should this page include errors that don't actually occur (as far as we know) but that the error handler can throw? An example is ERR:SOLVER.

The first question has been resolved. I'm still uncertain what to do about ERR:SOLVER, ERR:SCALE, ERR:NO MODE, ERR:LENGTH, and ERR:APPLICATION. On the one hand, they don't contribute anything to the page. On the other hand, they might be interesting trivia, and if an application released by TI ends up using them, they might be helpful.